. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 9. Equisetum laevigatum A. Br. Smooth Scouring-rush. Fig. 97. Equisetum laevigatum A. Br.; Engelm. Amer. Journ. Sci. 46: 87. 1844- Stems ic-S° high, simple or little branched, pale green, annual or persistent, 14-30-furrowed, the ridges almost smooth. Sheaths elongated and en- larged upward, marked with a black girdle at the base of the mostly deciduous, white-
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 9. Equisetum laevigatum A. Br. Smooth Scouring-rush. Fig. 97. Equisetum laevigatum A. Br.; Engelm. Amer. Journ. Sci. 46: 87. 1844- Stems ic-S° high, simple or little branched, pale green, annual or persistent, 14-30-furrowed, the ridges almost smooth. Sheaths elongated and en- larged upward, marked with a black girdle at the base of the mostly deciduous, white-margined teeth and rarely also at their bases; ridges of the sheath with a faint central carina and sometimes with faint short lateral ones; stomata arranged in single series; central cavity very large, the wall of the stem very thin, spikes pointed. Along streams and rivers, especially in clay soil, Ontario to New Jersey, North Carolina, Louisiana, British Columbia and the Mexican border. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Brown, Addison, 1830-1913. New York, Scribner
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
